Buick regal just cuts off while driving

Was running fine and just died going down the highway, started back up n died again got it started again n made it home . changed the crank sensor, ran For a day n just cut off again, changed the ignition control module n it ran worse, put the old one back on n changed the plugs, still no different , it just cuts off while driving sometimes it will restart in a few hours or the next day.

8 Answers

ooo, I hate that when that happens...one looses faith in the
machinery that may be used to bring a person to the hospital
(for example) yes...this is intolerable...to confess, I always GET
rid of cars that strand me~ we could start by checking the fuel
pressure...the fuel pump may be weak...that would be my first
guess~ grounding to the coil is something that could be affected
by temperature~...perhaps at a weak and corroded state and
needs a tending to~ see I cannot see your vehicle...but you have
my thoughts...just TEST the fuel pressure...you could even
relieve the pressure at the fuel rail...there is a "shoeder valve"
for testing pressure (should be 30-50 PSI min)~ and not "go
out"...would probably look to the fuel pump as the main cause for
this...not the pump itself, but power to the pump~ (possibly~)

obviously we are not getting power from the battery...make sure
the battery is New-ish~ and is at 12.5 volts~ check the power at the
coil..engine switched on~ perhaps is a simple matter of cleanin' the
battery terminals~

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